LibJS: Add Array.prototype.some

Libraries/LibJS/Tests/Array.prototype.some.js

@@ -0,0 +1,34 @@
+load("test-common.js");
+
+try {
+    assert(Array.prototype.some.length === 1);
+
+    assertThrowsError(() => {
+        [].some(undefined);
+    }, {
+        error: TypeError,
+        message: "undefined is not a function"
+    });
+
+    var array = ["hello", "friends", 1, 2, false, -42, { name: "serenityos"}];
+
+    assert(array.some(value => value === "hello") === true);
+    assert(array.some(value => value === "serenity") === false);
+    assert(array.some((value, index, arr) => index === 1) === true);
+    assert(array.some(value => value == "1") === true);
+    assert(array.some(value => value === 1) === true);
+    assert(array.some(value => value === 13) === false);
+    assert(array.some(value => typeof(value) !== "string") === true);
+    assert(array.some(value => typeof(value) === "boolean") === true);
+    assert(array.some(value => value > 1) === true);
+    assert(array.some(value => value > 1 && value < 3) === true);
+    assert(array.some(value => value > 100) === false);
+    assert(array.some(value => value < 0) === true);
+    assert(array.some(value => array.pop()) === true);
+    assert(["", "hello", "friends", "serenity"].some(value => value.length === 0) === true);
+    assert([].some(value => value === 1) === false);
+
+    console.log("PASS");
+} catch (e) {
+    console.log("FAIL: " + e);
+}